Intel Express 10/100 Stackable Hub Management Module User Guide
This guide covers the following product: Intel Express 10/100 Stackable Hub - Management Module. Product code EE110MM. The Management Module supports the following products: Intel Express 10/100 Stackable Hub - 12-port TX hub. Product code EE110TX12. Intel Express 10/100 Stackable Hub - 24-port TX hub. Product code EE110TX24. Copyright © 1997, Intel Corporation. All rights reserved.
Quick Start 1. Turn off the power. Unscrew and remove the panel from an expansion slot on the Express 10/100 Stackable Hub. Expansion slots: Use either slot. They are identical. 1 2 3 4 Hub speed: Install in a hub running at 100 Mbps or at 10 Mbps. It will manage all hubs in the stack, regardless of speed, if they’re connected with Intel Cascade Cables.
Contents Chapter 1 Overview of Hub Management 5 Managing multiple hubs .................................................................................................................... 6 Hub numbering .................................................................................................................................. 6 Collision domain assignments........................................................................................................... 7 MIB identification ...............
Screen definitions (continued) Top Traffic Generators screen ................................................................................................. 41 Utilization and Collision History screen .................................................................................. 43 Login, Security & Reset Options screen .................................................................................. 45 About screen .....................................................................................
1 Overview of Hub Management Hubs themselves are rarely the cause of problems on the network. However, since hubs are the center point for many devices on the network, it’s a good place to start looking for problems. There are four categories of management tasks: • Configuring the hub or stack of hubs. This includes setting the IP configuration, naming the hubs, and disabling individual ports. • Monitoring traffic. This helps to plan network expansion or make segmenting decisions.
Managing multiple hubs To manage multiple hubs, you must stack them using Intel Cascade Cables. 100 Mbps 100 Mbps 10 Mbps 10 Mbps Intel Cascade Cable (product code EE110CC) Connecting hubs with Intel Cascade Cables allows you to manage both 10 and 100 Mbps hubs with a single Management Module. Hub numbering Once connected with Intel Cascade Cables, the Management Module numbers hubs from top to bottom, regardless of the placement of the Management Module.
Collision domain assignments All hubs running at the same speed in the stack belong to the same collision domain. In the example below, all devices (PCs, print servers, and so on) connected to hubs 1 and 2 share 100 Mbps of bandwidth. All devices connected to hubs 3 and 4 share 10 Mbps of bandwidth.
LCD menu tree Select stat type: Domain Port Collisions & usage per second Select hub&port hub=1 port=1 Packets (p. 32) Collisions (p. 32) Auto-partitions (p. 35) Alignment errors (p. 34) Frames too long (p. 34) Runts (p. 35) Very long events (p. 35) Rate mismatches (p. 35) Late collisions (p. 35) FCS errors (p. 34) Short events (p. 34) Traps Config Set IP address Manual IP address: 000.000.000.000 Subnet Mask: 000.000.000.000 Default Gateway: 000.000.000.
2 Using the LCD Navigating The Management Module has four buttons and an LCD display, which you can use to display information about your network or to make changes to the module, hub, or stack. Esc - use to go back a level Enter - use to accept selection Management Module Main Menu: Stats Config Esc > Reset Reset button. See page 46. The option currently selected flashes on the display. If there are other items in the menu, an arrow (< >) appears on the left or right side of the display.
Changing the LCD contrast You can change the contrast so the display is viewable from different angles. For example, if the management module is located in a hub at the top of a rack. • Make sure the Main menu is displayed with the Stats item flashing. – To darken: Press the Esc button for five seconds to enter contrast mode. Keep pressing until the display turns darker. – To lighten: Press the left arrow button for five seconds to enter contrast mode. Keep pressing until the display turns lighter.
3 Use the arrow keys to step through the different stats —packets, collisions, auto-partitions, alignment errors, frames too long, runts, very long events, rate mismatches, late collisions, FCS errors, short events. While viewing a statistic, you can update by pressing . For more information on these statistics, see pages 31-35. Changing the IP configuration 1 From the Config menu, select Set IP. Press 2 Select OK to continue or Cancel to return to the Main menu. Press 3 Select Manual or BootP.
Text: User-defined text set via SNMP through LANDesk Network Manager or Device View for Web. Up to 32 characters can be displayed on the LCD. Address: The current IP address of the Management Module. 4 Choose Yes if you want the management module to sleep now or No to return to the Config menu. Press Disabling a port 1 From the Config menu, select Ports. Press 2 Use the arrow keys to select the hub (from 1 to 8). Press 3 Use the arrow keys to select the port number (from 1 to 12 or 1 to 24).
3 Using the Console Manager Accessing with the serial port NOTE 1 Use the enclosed null modem cable to connect the serial port of your PC to the serial port of the Management Module. 2 Open a terminal emulation program (such as HyperTerminal in Microsoft Windows* 95). Use these communication parameters: Make sure VT100 arrows are enabled in your terminal emulation program. NOTE If you’re running Windows 95 or NT*, make sure the scroll lock is off on your keyboard.
Accessing with Telnet Telnet lets you access the Management Module in-band (over the network). To use Telnet: NOTE 1 Make sure an IP address is assigned to the Management Module. See pages 11 or 19 for instructions. 2 Open a Telnet application. In Windows 95, select Run from the Start Menu. Type: Make sure you enable VT100 arrows in the Telnet application you’re using. If you don’t, you won’t be able to use the arrow keys. NOTE If the screen doesn’t display correctly when connecting, press q.
Navigating See below for navigation tips. On the top screen (see the next page) you can press the number of the menu item to select it. For example, selecting 1 will display the System Configuration screen. WZ or T: Moves up or down to the next menu item. For example, pressing Z moves from Name: to Location:. E: Selects a menu item. For example, pressing E here takes you to the IP configuration screen. AS or z: Moves to next selection within a menu item.
Top screen (main) The Top screen is the starting point for all other Console Manager screens. Type the number of a screen to display it (for example, pressing 4 displays the Port Statistics screen). Or use the WZ arrow keys and E to display the menu. To return to the Top screen at any time, press cT.
System Configuration screen Location Top screen 1. System Configuration Uses Name: Assigns a name to the entire system (Management Module plus all hubs in the stack). You can use up to 255 characters. This sets the value for Name in the LCD sleep mode (see page 11). The LCD displays only the first 16 characters. Location: Assigns a location to the entire system (Management Module plus all hubs in the stack). You can use up to 255 characters. This sets the value for Loc.
Contact: Assigns a contact person or phone number to the entire system (Management Module plus all hubs in the stack). You can use up to 255 characters. This sets the value for Contact in the LCD sleep mode (see page 11). The LCD displays only the first 16 characters. : Press E to display the IP Configuration screens. : Press E to display the SNMP Configuration screens. Hub: Use AS or z to select the number of the hub in the stack.
Local IP Configuration screen Location Top screen 1. System Configuration Uses Management Module MAC address: Displays the unique manufacturer-assigned hardware address. Current settings: Displays the IP configuration currently used by the Management Module. The IP address shown here is the one you’d use to access the Management Module through Telnet or a ping test.
IP address: The unique user-assigned network address for the Management Module. Subnet mask: Should match the subnet mask of other devices on your network. Default gateway: The IP address of the device that routes to different networks. Typically a router or routing server. New settings: Use to assign a new IP configuration to the Management Module. 20 • Choose
Remote IP Configuration screen Location Top screen 1. System Configuration Uses Management Module MAC address: Shows the unique manufacturer-assigned hardware address. To use BOOTP, you must enter this address into your BOOTP server. BOOTP service: Use AS or z to change to enabled to have the Management Module look for a BOOTP agent on a server to obtain its IP address. You must first set up the BOOTP server.
Select disabled to have the Management Module use the IP configuration specified in the Local IP Configuration screen. 22 • Choose
SNMP Configuration screen Location Top screen 1. System Configuration Uses Current read community: Sets a password for viewing (not changing) the hub configuration. The string you define here must match the read community string defined in an SNMP application. Current write community: Sets a password for changing (not reading) the hub configuration. The string you define here must match the write community string defined in an SNMP application.
Trap Receiving Stations screen Location Top screen 1. System configuration Uses Enter the IP addresses of PCs with SNMP management applications (such as LANDesk Network Manager) installed. When a trap occurs, such as a speed change on a hub, the Management Module automatically alerts the SNMP management application.
Supported traps include: • notification of utilization exceeding a defined percentage or collisions exceeding a defined number (configurable in LANDesk Network Manager). Also configurable by using a MIB browser to edit these objects in iee110.mib: - rptrDomainUtilizationTrapThreshold rptrDomainUtilizationTrapPeriod rptrDomainCollisionTrapThreshold rptrDomainCollisionTrapPeriod • notification of a hub configuration change, such as a speed change or an unplugged Cascade Cable.
Port Configuration screen Location Top screen 2. Port configuration Uses Hub: Use AS or z to select the number of the hub in the stack. The hub at the top of the stack is number one. The location of the Management Module in the stack has no effect on hub numbering. Disable/enable port: Use AS or z to select the hub port. Press E on to disable or enable the port. Check the status column to see if the port is disabled or OK (enabled).
Port: Displays the port number on the hub selected in the Hub: field. Ports 13-Slot and 14-Slot on a 12-port hub refer to the two expansion slots. If you’re facing the hub, the left slot is port 13 and the right slot is port 14.
Collision Domain Statistics screen Location Top screen 3. Collision domain statistics Uses Update interval: Selects the time period between updates. For example, an Update interval of 5 sec. means the Console Manager collects and displays information from the Management Module every five seconds.
Collision domain: Selects which collision domain (10 or 100 Mbps hubs) to view. All hubs in the stack running at the same speed are in the same collision domain.
Frames too long: The number of frames detected that exceed the maximum permitted frame size of 1518 octets. Short events: The number of fragments detected with ActivityDuration less than ShortEventMaxTime (greater than 74 bit times and less than 82 bit times). Usually indicates a network topology problem, such as connecting two Express hubs running at 100 Mbps with UTP cable (instead of Intel Cascade Cables in a stack) or using cables longer than 100 meters.
Port Statistics screen (traffic) Location Top screen 4. Port statistics Statistic: [traffic] Uses Hub: Use AS or z to select the number of the hub in the stack. The hub at the top of the stack is number one. The location of the Management Module in the stack has no effect on hub numbering. Ports: Use AS or z to select the range of ports to view. The example above shows ports 11-14 on a 12-port hub. If you’re facing the hub, ports 13 and 14 are the left and right expansion slots, respectively.
Statistic: Use AS or z to select the type of port statistics you want to view. Errors is the other type of statistic option you can view. See page 33. Update interval: Use AS or z to select the time period between updates. For example, an Update interval of 5 sec. means the Console Manager collects and displays information from the Management Module every five seconds. Speed: Displays the current speed of the hub in the Hub: field. Type: Displays the manufacturer-assigned type of hub.
Port Statistics screen (errors) Location Top screen 4. Port statistics Statistic: [errors] Uses Hub: Use AS or z to select the number of the hub in the stack. The hub at the top of the stack is number one. See page 18 for an example. Ports: Selects the range of ports to view. The example shows ports 11-14 on a 12-port hub. If you’re facing the hub, ports 13 and 14 are the left and right expansion slots respectively. See page 27 for an example.
Statistic: Use AS or z to select the type of port statistics to view. Traffic is the other type of statistic option you can view (see page 31). Update interval: Use AS or z to select the time period between updates. For example, an update interval of 5 sec. means the Console Manager collects and displays information from the Management Module every five seconds. Speed: Displays the current speed of the hub in the Hub: field. Type: Displays the manufacturer-assigned type of hub.
Late events: The number of collisions detected after the allowable detection period. Usually indicates a network topology problem, such as daisy-chaining two Express hubs running at 100 Mbps with UTP cable (instead of Intel Cascade Cables in a stack), daisy-chaining too many hubs running at 10 Mbps, or using cables longer than 100 meters. Very long events: The number of times MAU jabber lockup protection (MJLP) was detected due to transmission of data that exceeded 5 msec.
Network Health Checks screen Location Top screen 5. Network health checks Uses Device Checks: Looks for connected devices that are operating at a speed opposite to the hub, or looks for cabling problems. Traffic Checks: Looks for ports generating the largest volume of traffic (sorted by total octet count), or gives a history of the utilization percentage and collision count for up to the last hour.
Wrong Speed Device screen Location Top screen 5. Network health checks Uses Update interval: Use AS or z to select the time period between updates. For example, an update interval of 5 sec. means the Console Manager checks the Management Module every five seconds to see if it detected wrong speed devices. / Moves up or down the list of wrong speed devices.
Hub: Displays the hub number in the stack where the wrong speed device was found. The hub at the top of the stack is number one. Port: Displays the port number in the hub where the wrong speed device was found. NOTE All zeros are displayed in the Last MAC addr field if the Management Module never recognized the device on the port. For example, the device plugged into the port was always at the wrong speed.
Wrong Polarity Cabling screen Location Top screen 5. Network health checks Uses Update interval: Selects the time period between updates. For example, an Update interval of 5 sec. means the Console Manager will check the Management Module every five seconds to see if it detected wrong polarity cabling. / Moves up or down the list of wrong polarity cabling devices.
Port: Displays the port number in the hub where the wrong polarity device was found. NOTE All zeros are displayed in the Last MAC addr field if the Management Module never recognized the device on the port. For example, the device plugged into the port always had wrong polarity cabling between it and the hub. 40 Last MAC addr: Displays the hardware address of the most recent device that sent data on that port. Problem: Displays what the problem is.
Top Traffic Generators screen Location Top screen 5. Network health checks Uses View for the last: Selects the time period to look back on. Domain: Selects which collision domain (10 or 100 Mbps hubs) to view top traffic generating devices. All hubs in the stack running at the same speed are in the same collision domain.
Update interval: Selects the time period between updates. For example, an Update interval of 5 sec. means the Console Manager checks the Management Module every five seconds for the list of devices that are generating the most traffic. / Moves up or down the list of top traffic generating devices. Hub: Displays the hub number in the stack where the device is attached. The hub at the top of the stack is number one.
Utilization and Collision History screen Location Top screen 5. Network health checks Uses View for the last: Selects the time period to look back on. Domain: Selects which collision domain (10 or 100 Mbps hubs) to view. All hubs in the stack running at the same speed are in the same collision domain.
Update interval: Selects the time period between updates. For example, an Update interval of 5 sec. means the Console Manager checks the Management Module every five seconds for updated information. Utilization Breakdown: Displays the amount of time the selected collision domain had a utilization percentage in the particular range. In the example, the 10 Mbps collision domain was at 0-9% utilization for 41 minutes and 16 seconds.
Login, Security & Reset Options screen Location Top screen 6. Login, security, and reset options Uses Username: By default, no username is assigned. The one you specify here is used the next time you reset the Management Module or log out of the Console Manager. You can define only one username. Old password: By default, no password is assigned. Leave this setting blank if you’re assigning one for the first time. New password: Sets a new password for accessing the Console Manager.
Confirm new password: Ensures you entered what you thought you entered in the New password field. : Saves any changes to the Login settings. The next time you reset the Management Module or log out and log in again, you must use the new settings. : Discards any unsaved changes to the Login settings. If you already selected , selecting will do nothing. Reset hub: Resets an individual hub.
About screen Location Top screen 7. About Uses IP address: Displays the Management Module IP address currently in use. Management Module MAC address: Displays the unique manufacturer-assigned hardware address. You can’t change the MAC address. Vendor name: Displays the Management Module manufacturer.
Product name: Displays the type of device the Management Module is supporting. Hardware version: Displays the Management Module’s hardware version. You can’t update the hardware version. It’s a good idea to write this information down and have it ready should you need to contact Intel Customer Support. Software version: Displays the Management Module’s software version. It’s a good idea to write this information down and have it ready should you need to contact Intel Customer Support.
Logout screen Location Top screen 8. Logout Uses Returns to the login screen.
4 Technical Information Locating MIB files The following Management Module MIB files are located on the Intel Device View for Web CD in the \MIB directory. • • • intel.mib intelsys.mib iee110.mib You can also download the MIB files from the Intel Customer Support Web site (http://support.intel.com). Defaults Management Module (SNMP agent) IP address: None assigned IP configuration source: BOOTP disabled. Configure locally through LCD or Console Manager.
Hub Speed: 100 Mbps Consecutive collisions before auto-partition: 64 LCD Sleep mode: Off RS232 baud: 9600 Console Manager 52 Communication parameters: 9600-8-N-1, no flow control Username: None assigned Password: None assigned Typing mode: Overstrike. Use cO to change to insert.
Limited Hardware Warranty Intel warrants to the original owner that the hardware product delivered in this package will be free from defects in material and workmanship for three (3) years following the latter of: (i) the date of purchase only if you register by returning the registration card as indicated thereon with proof of purchase; or (ii) the date of manufacture; or (iii) the registration date if by electronic means provided such registration occurs within 30 days from purchase.
Federal Communications Commission (FCC) Statement This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
WARNUNG Das System wurde für den Betrieb in einer normalen Büroumgebung entwickelt. Der entwickelt.
I Index 10 Mbps collision domain 7 10 Mbps hubs, resetting 45 100 Mbps collision domain 7 100 Mbps hubs, resetting 45 13-slot, definition 26 14-slot, definition 26 A-C alignment errors viewing for collision domain 28 viewing for individual ports 33 viewing from LCD 10 arrow keys, using 15 auto partitions viewing for collision domain 28 viewing for individual ports 33 viewing from LCD 10 average collision count, viewing 43 average utilization, viewing 43 bandwidth usage.
connecting serial port 13 Telnet 13 Console Manager, using 13 contact name, assigning 17 contrast control, LCD 10 ctrl+o hot key 15 customer support Inside back cover D-F darkening the LCD display 10 default gateway assigning 19 changing from LCD 11 displaying current setting 19 defaults collisions before auto-partition 52 hub speed 52 HyperTerminal 14 IP address 51 password 14 read community 51 RS232 baud 52 typing mode 52 username 14 write community 51 defective product, returning 53 devices, finding at
installing, quick start 1 IP address assigning from LCD 11 assigning locally from Console Manager assigning remotely (BOOTP) 21 displaying current setting 19, 47 displaying in LCD sleep mode 11 viewing from LCD 12 19 L-O late collisions, viewing from LCD 10 late events viewing for collision domain 28 viewing for individual ports 33 LCD changing the contrast 10 configuring sleep menu options 17 disabling a port 12 enabling a port 12 graphs 10 navigating 9 using 9 viewing collision domain statistics 10 view
ports disabling/enabling 26 link status 26 viewing collision count 31 viewing frame count 31 viewing octet count 31 viewing utilization percentage 31 power interruptions, notifying SNMP applications 24 product name, viewing 47 Quick Start 1 rate mismatches viewing for collision domain 28 viewing for individual ports 33 viewing from LCD 10 read community string, changing 23 receive pairs, wrong polarity 39 receiving stations, sending traps to 24 remote IP configuration, enabling 21 Remote IP Configuration sc
transmit pairs, wrong polarity 39 Trap Receiving Stations screen, displaying traps defining receiving stations 24 displaying in LCD sleep mode 11 types 24 viewing from LCD 12 troubleshooting customer support Inside back cover finding wrong polarity cabling 39 finding wrong speed devices 37 keyboard does not work 13, 14 MAC address not displayed 38 port is disabled 27 U-W update interval, setting for collision domain statistics 28 usage.
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